Proxypass and reverse proxy from apache to nginx - apache

I have subdomain website http://subdomain.mywebsite.com/path which is hosted on Siteground and running on nginx server. I want the users should be able to access the above path or its subpaths through main website URL lets say http://mywebsite.com/path which is running on apache server.
I have tried to proxypass and reverseproxypass using following in apache configuration file on my main website:-
<Location "/path">
ProxyPass "http://subdomain.mywebsite.com/path"
ProxyPassReverse "http://subdomain.mywebsite.com/path"
</Location>
When i access the page http://mywebsite.com/path I get 404 page of siteground whereas the same path is directly accesible using http://subdomain.mywebsite.com/path.
I have been trying to find the solution but could not get it working.

You can use the below configuration:
ProxyPass /path http://subdomain.mywebsite.com/path
ProxyPassReverse /path http://subdomain.mywebsite.com/path

Related

How to redirect URL with port to URL with context?

I have a server with apache(2.4.18) installed
I have installed multiple applications on the server like Grafana, Sonarqube, and MySQL enterprise monitor(MEM)
Each application has URL like this
http://test.com:9000
http://test.com:3000
I am looking for a solution which allows me to redirect this URL with the port to URL with context, something like that
http://test.com:9000 --> http://test.com/sonar
http://test.com:3000 --> http://test.com/grafana
I have added some code in /etc/apache2/sites-enabled/000-default.conf file
Redirect permanent /sonar http://test.com:9000
Redirect permanent /grafana http://test.com:3000
but when I enter http://test.com/sonar in the web browser it redirects to http://test.com:9000 URL only
I want http://test.com/sonar this URL to persists on Web browser
If you use Redirect permanent, server will send 301 response back to client (along with new Location). That will result in browser issuing a new request, this time to new Location, and also new location will be shown in browser address bar.
What you need is Reverse Proxy. For this you need to make sure that mod_proxy is enabled in your apache configuration (usually it is enabled by default), and put something like this in your .conf file:
ProxyPreserveHost On
ProxyPass /sonar http://127.0.0.1:9000
ProxyPassReverse /sonar http://127.0.0.1:9000
ProxyPass /grafana http://127.0.0.1:3000
ProxyPassReverse /grafana http://127.0.0.1:3000
You will probably also have to make your applications aware that they are running under non-root context (by making some configuration changes):
http://docs.grafana.org/installation/behind_proxy/
https://docs.sonarqube.org/latest/setup/install-server/
You need to proxy requests and not redirect them.
Use a ProxyPass directive as mentioned in the official apache proxy documentation
For example add this location block inside your configuration:
<Location "/sonar">
ProxyPass "http://test.com:9000"
</Location>

Apache ProxyPass to 2 different tomcat servers with same URI

I have 2 servers with apache http server (2.4.9) on them. I have 2 servers with tomcat 7.0.39 running on them. Ultimately I need to load balance between the 2, but right now am simply trying to get this ProxyPass configuration to work.
I have one url on the 2 apache servers- example.com. They are load balanced. The load balancing is in place and there is no issue.
I have 2 applications, 1 on each tomcat server. Each tomcat server has 2 instances of tomcat running- each on a different port. They are running a very similar application with the exact same uri.
I need to redirect:
example.com/site1 to example.com/app (for app1)
example.com/site2 to example.com/app (for app2)
I can redirect this easily enough for 1 application only:
ProxyPass /app/ AppSrv:8080/app/
ProxyPassReverse /app/ http://example.com/app/
I can get to the page, log in, no problem. For a singe application only.
When I set up a configuration for both applications, I can get to the login page of both applications as well when configured as such:
ProxyPass /site1/ AppSrv:8080/app
ProxyPassReserve /app/
ProxyPass /site2/ AppSrv:8081/app
ProxyPassReverse /app/
Both urls come up with the tomcat application login page. But neither work after this- they fail. The uri reads 'site1' (or 'site2') not 'app'. I cannot log in.
The application requires the uri '/app/' as the base uri in order to function.
The applications are listening on different ports, but have the same uri. How do I keep the uri in the url, but change it so the application responds?
Ultimately I have to balance this, but I've done that before. This is the part I'm having a hard time with.
Ok, I finally solved this. I had to modify the header.
ProxyPass /site1/ balancer://example.com/app/
ProxyPass /site2/ balancer://example.com/app/
<Location /site1>
ProxyPassReverse /app
ProxyPassReverseCookiePath /app /site1
Header edit Location ^(https?://)?example.com/app/ /site1/
</Location>
<Location /site2>
ProxyPassReverse /app
ProxyPassReverseCookiePath /app /site2
Header edit Location ^(https?://)?example.com/app/ /site2/
</Location>

Apache Redirect to two different servers bases on URL

I want to do the following:
I've a server A (http://server-a:9000/) and the server B (http://server-b:8000/). Additionally I've installed an Apache running on port 80.
When I access the apache with http://localhost/product I want to pass this request to http://server-a:9000/product
and
when I access the apache with http://localhost/details I want to pass the request to http://server-b:8000/details.
I'v got this working with the following configuration:
ProxyPass /product http://server-a:9000/product
ProxyPassReverse /product http://server-a:9000/product
ProxyPass /details http://server-b:8000/product
ProxyPassReverse /details http://server-b:8000/product
But with this configuration the original URL http://localhost/product is replaced by http://server-a:9000/product.
How can I configure my Apache so that it doesn't replace the URL? The displayed URL should always be http://localhost/product.
Thank you in advance
Torben

What are my options to deploy Go applications alongside PHP applications?

What I'm basically trying to accomplish is having my main website running a CMS written in Go. This will be located at www.example.com.
I also have applications written in PHP located in directories, such as www.example.com/clients/
How can I serve example.com/clients using Apache/PHP while serving example.com using Go built-in web server?
Via mod_proxy in Apache2, you can proxy different paths into different destinations at localhost or anywhere else accessible by your server, including within your local network (if your server can access it).
For this you would use ProxyPass (Apache2 Docs for ProxyPass, which is very useful reading) like the example below:
<VirtualHost *:80>
ServerName some.example.host.xyz
DocumentRoot /var/www/your-document-root
Alias /clients/ /var/www/clients/
ProxyPass /clients/ !
ScriptAlias /something-using-cgi/ /var/www/cgi-stuff/
ProxyPass /something-using-cgi/ !
ProxyPreserveHost On
ProxyPass / http://localhost:9876/
ProxyPassReverse / http://localhost:9876/
ProxyPass /elsewhere/ http://elsewhere.example.host.xyz:1234/
ProxyPassReverse /elsewhere/ http://elsewhere.example.host.xyz:1234/
</VirtualHost>
You'll want to be sure that you set your proxy security such that external users can't use your reverse proxy as a forward proxy, too. You can do that via ProxyRequests as described in the official Apache2 docs. The way I did this on a server is to put this in your server-wide config (you should verify on your own that this is secure enough):
# disables forward proxy
ProxyRequests Off
Andrew Gerrand has a good blog post about this for nginx but the principle is the same for Apache.
You want to set up Apache as a reverse proxy for requests coming in for the Go application.
For Apache you want to look at mod_proxy

ProxyPassReverse to Tomcat adding path to URL

I'm running Railo 3 in Tomcat 6.0.32. The tomcat server is fronted by Apache 2.2.20. Tomcat and Apache are pre built binaries from openCSW. Railo is just the latest build war deployed in tomcat's autodeploy dir webapps.
Everything is working fine when I try to access railo and content on the tomcat server.
It fails however, when railo on tomcat redirects me to itself. Mostly, when a cfm script uses the CGI.script_name, it will be returned wrong.
On the Apache side, the content is available on www.hostname.com. Apache redirects the user to tomcat through AJP on www.hostname.com:8009/railo/content.
A script on tomcat (taken from open OAuth example) is available at:
/opt/csw/share/tomcat6/webapps/railo/content/oauth_test/examples/admin_consumers.cfm
When I access it and try to perform some action, it calls itself with a few parameters, but at that point, railo dumps out an error, complaining that the file can not be found:
Page /content/railo/content/oauth_test/examples/admin_consumers.cfm [/opt/csw/share/tomcat6/webapps/railo/content/railo/content/oauth_test/examples/admin_consumers.cfm] not found
As you can see railo added twice the relative path from tomcat: /railo/content/railo/content
This is my configuration for the virtual host in Apache:
<VirtualHost *:443>
ServerName www.hostname.com
DocumentRoot "/opt/www/hostname/htdocs/"
ProxyRequests Off
<proxy *="">
Order deny,allow
Allow from all
</proxy>
ProxyPass / ajp://www.hostname.com:8009/railo/content/
ProxyPassReverse / http://www.hostname.com:8888/railo/content/
</VirtualHost>
I tried several variant for the ProxyPassReverse directive, but with no luck so far. Based on extensive searches on the web (The Mystery of ProxyPassReverse), I tried this for the proxypassreverse:
ProxyPassReverse / ajp://www.hostname.com:8009/railo/content/
ProxyPassReverse / http://www.hostname.com:8888/railo/content/
ProxyPassReverse / http://localhost:8888/railo/content/
ProxyPassReverse / https://www.hostname.com
The tomcat server also has a virtual host defined like this:
<Host name="www.hostname.com">
<Context path="" docBase="/opt/csw/share/tomcat6/webapps/railo/content" />
</Host>
But everytime, I always get the error from Railo.
Has anyone ever seen this problem with Railo, or CGI, and has an idea how to fix it?
You are specifying "/railo/content" twice. Once in your "docBase" attribute and again in your Proxy attributes. So, requests being proxied through Apache are going to have "railo/content/" twice in their request paths because you have it listed twice: once in Apache, another time in Tomcat.
Try leaving off the /railo/content/ in your ProxyPassReverse attribute:
ProxyPassReverse / http://www.hostname.com:8888/
This will let the Tomcat config add the /railo/content/ bit all by itself.